Topic: Schools for the Blind and Visually Impaired

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3.0

Feb 21, 2020
02/20

by
Dave Gerhardt

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This week on TiB, I'm joined by Liz Powers, co-founder and chief happiness spreader :) at ArtLifting. ArtLifting empowers homeless and disabled individuals through the sale of their artwork (via ArtLifting's online art marketplace). Back in October, ArtLifting raised a $1.1 million seed round from Toms Shoes founder Blake Mycoskie, angel investor Joanne Wilson, author and entrepreneur Eric Ries, social impact accelerator Tumml and others after Liz Powers and her brother Spencer had bootstrapped...

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3.0

Feb 5, 2020
02/20

by
Karen Gerhardt

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All the things we love about horses.

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Sep 20, 2013
09/13

by
Claus Gerhardt

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We consider branes $N=I\times\so$, where $\so$ is an $n$\ndash dimensional space form, not necessarily compact, in a Schwarzschild-AdS_{(n+2)} bulk $\mc N$. The branes have a big crunch singularity. If a brane is an ARW space, then, under certain conditions, there exists a smooth natural transition flow through the singularity to a reflected brane $\hat N$, which has a big bang singularity and which can be viewed as a brane in a reflected Schwarzschild-AdS_{(n+2)} bulk $\hat{\mc N}$. The joint...

Source: http://arxiv.org/abs/gr-qc/0404061v5

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3.0

Jun 29, 2018
06/18

by
Claus Gerhardt

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We quantize the interaction of gravity with a Yang-Mills and Higgs field using canonical quantization. Similar to the approach in a previous paper we discard the Wheeler-DeWitt equation and express the Hamilton constraint by the evolution equation of the mean curvature of the hypersurfaces in the foliation defined by the Hamiltonian setting. Expressing the time derivative of the mean curvature with the help of the Poisson brackets the canonical quantization of this equation leads to a wave...

Topics: High Energy Physics - Theory, Mathematical Physics, General Relativity and Quantum Cosmology,...

Source: http://arxiv.org/abs/1602.07191

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Jan 4, 2015
01/15

by
Paul Gerhardt

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Topic: bub_upload

Source: http://books.google.com/books?id=YmVFAAAAcAAJ&hl=&source=gbs_api

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209

Sep 4, 2018
09/18

by
Charles Gerhardt

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Tracklist: 1. The Adventures of Don Juan 2. The Sea Hawk (Suite) 3. Ship in the Night (From "Captain Blood") 4. They Died with Their Boots On 5. Dodge City 6. Parachute Drop (From "Objective Burma") 7. The Sun Also Rises 8. The Adventures of Robin Hood

Source: CD

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Oct 7, 2020
10/20

by
Ulrich Gerhardt

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Da gehen wir nicht mehr hin Wolfram Siebecks Restaurantverrisse Von Ulrich Gerhardt 2016 starb der Restaurantkritiker Wolfram Siebeck mit 86 Jahren. Ein Jahr zuvor übergab er Regisseur und Autor Ulrich Gerhardt 36 Audio-Kassetten aus den 1980er-Jahren, die er als Protokollmedium bei seinen Restaurantbesuchen besprochen hatte. Siebecks Kritiken polarisierten: Die einen kochten fasziniert seine Rezepte. Die anderen fühlten sich durch seinen kritischen Absolutheitsanspruch angegriffen. Siebeck...

Topic: Feature

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6.0

Jun 8, 2020
06/20

by
J Gerhardt

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5.0

Jun 8, 2020
06/20

by
J Gerhardt

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The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.). See also the What is the directory structure for the texts? FAQ for information about file content and naming conventions.

Topic: Physical instruments

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Sep 22, 2013
09/13

by
Claus Gerhardt

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We define a physically reasonable mass for an asymptotically Robertson-Walker (ARW) manifold which is uniquely defined in the case of a normalized representation.

Source: http://arxiv.org/abs/math/0403002v2

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Topic: Massinger, Philip, 1583-1640

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128

Oct 1, 2014
10/14

by
Friedrich Gerhardt

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Topic: bub_upload

Source: http://books.google.com/books?id=8KgKAAAAIAAJ&hl=&source=gbs_api

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102

Sep 30, 2014
09/14

by
Paul Gerhardt

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Topic: bub_upload

Source: http://books.google.com/books?id=83g6AAAAcAAJ&hl=&source=gbs_api

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4.0

Feb 4, 2020
02/20

by
Karen Gerhardt

Anything and everything to do with horses. Archived from iTunes at https://itunes.apple.com/us/podcast/hay-is-for-horses/id1449599341. Items in this collection are restricted.

Topics: podcast, itunes, apple

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76

Oct 13, 2011
10/11

by
J. Gerhardt

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Topics: Coleoptera, Coccinellidae, Hyperaspis concolor

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42

Sep 21, 2013
09/13

by
Claus Gerhardt

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We quantize the interaction of gravity with Yang-Mills and spinor fields, hence offering a quantum theory incorporating all four fundamental forces of nature. Using canonical quantization we obtain solutions of the Wheeler-DeWitt equation in a vector bundle and the method of second quantization leads to a symplectic vector space $(V,\om)$ and a corresponding CCR representation. We also define a net of local subalgebras which satisfy four of the Haag-Kastler axioms.

Source: http://arxiv.org/abs/1301.6101v2

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4.0

Feb 21, 2020
02/20

by
Dave Gerhardt

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Mark Roberge joined me live at Drift this week to talk about HubSpot in the early days and the changing face of sales. Follow Mark: https://twitter.com/markroberge Follow Tech In Boston: https://twitter.com/techinboston Tweet about this episode: http://ctt.ec/VFf65

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Sep 22, 2013
09/13

by
Claus Gerhardt

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We prove the existence of smooth closed hypersurfaces of prescribed mean curvature homeomorphic to $S^n$ for small $n, n\le6$, provided there are barriers.

Source: http://arxiv.org/abs/math/0409467v1

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3.0

Jun 25, 2018
06/18

by
Claus Gerhardt

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In a former paper we proposed a model for the quantization of gravity by working in a bundle $E$ where we realized the Hamilton constraint as the Wheeler-DeWitt equation. However, the corresponding operator only acts in the fibers and not in the base space. Therefore, we now discard the Wheeler-DeWitt equation and express the Hamilton constraint differently, either with the help of the Hamilton equations or by employing a geometric evolution equation. There are two possible modifications...

Topics: General Relativity and Quantum Cosmology, High Energy Physics - Theory, Mathematical Physics,...

Source: http://arxiv.org/abs/1501.01205

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2.0

Jun 29, 2018
06/18

by
Gerhardt Meurer

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The HI in galaxies often extends past their conventionally defined optical extent. I report results from our team which has been probing low intensity star formation in outer disks using imaging in H-alpha and ultraviolet. Using a sample of hundreds of HI selected galaxies, we confirm that outer disk HII regions and extended UV disks are common. Hence outer disks are not dormant but are dimly forming stars. Although the ultraviolet light in galaxies is more centrally concentrated than the HI,...

Topics: Astrophysics, Astrophysics of Galaxies

Source: http://arxiv.org/abs/1608.05935

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3.0

Jun 29, 2018
06/18

by
Claus Gerhardt

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In our model of quantum gravity the quantum development of a Cauchy hypersurface is governed by a wave equation derived as the result of a canonical quantization process. To find physically interesting solutions of the wave equation we employ the separation of variables by considering a temporal eigenvalue problem which has a complete countable set of eigenfunctions with positive eigenvalues and also a spatial eigenvalue problem which has a complete set of eigendistributions. Assuming that the...

Topics: High Energy Physics - Theory, Mathematical Physics, Quantum Physics, General Relativity and Quantum...

Source: http://arxiv.org/abs/1612.03469

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8.0

Feb 20, 2019
02/19

by
Gerhardt, Carl

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7.0

Jun 8, 2020
06/20

by
J Gerhardt

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99

Feb 11, 2015
02/15

by
Paul Gerhardt

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Topic: bub_upload

Source: http://books.google.com/books?id=f3k6AAAAcAAJ&hl=&source=gbs_api

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Sep 20, 2013
09/13

by
Claus Gerhardt

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Using the results and techniques of a previous paper where we proved the quantization of gravity we extend the former result by adding a Yang-Mills functional and a Higgs term to the Einstein-Hilbert action.

Source: http://arxiv.org/abs/1207.0491v3

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2.6K

Apr 5, 2006
04/06

by
C. Gerhardt

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Scientific Instruments - Trade Literature

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Oct 24, 2018
10/18

by
Charles Gerhardt

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No barcode Tracklist: 1. Prince Valiant 2. A Place in the Sun 3. The Bride of Frankenstein 4. Sunset Boulevard 5. Old Acquaintance 6. Rebecca 7. The Philadelphia Story 8. Taras Bulba

Source: CD

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Sep 23, 2013
09/13

by
Teena Gerhardt

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The main result of this paper is the computation of TR^n_{\alpha}(F_p;p) for \alpha in R(S^1). These R(S^1)-graded TR-groups are the equivariant homotopy groups naturally associated to the S^1-spectrum THH(F_p), the topological Hochschild S^1-spectrum. This computation, which extends a partial result of Hesselholt and Madsen, provides the first example of the R(S^1)-graded TR-groups of a ring. These groups arise in algebraic K-theory computations, and are particularly important to the...

Source: http://arxiv.org/abs/0710.2938v2

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Sep 20, 2013
09/13

by
Claus Gerhardt

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We consider the inverse mean curvature flow in Robertson-Walker spacetimes that satisfy the Einstein equations and have a big crunch singularity and prove that under natural conditions the rescaled inverse mean curvature flow provides a smooth transition from big crunch to big bang. We also construct an example showing that in general the transition flow is only of class $C^3$.

Source: http://arxiv.org/abs/gr-qc/0404112v2

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44

Sep 22, 2013
09/13

by
Claus Gerhardt

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We consider spacetimes $N$ satisfying some structural conditions, which are still fairly general, and prove convergence results for the leaves of an inverse mean curvature flow. Moreover, we define a new spacetime $\hat N$ by switching the light cone and using reflection to define a new time function, such that the two spacetimes $N$ and $\hat N$ can be pasted together to yield a smooth manifold having a metric singularity, which, when viewed from the region $N$ is a big crunch, and when viewed...

Source: http://arxiv.org/abs/math/0403485v2

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42

Sep 23, 2013
09/13

by
Claus Gerhardt

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We consider spacetimes with compact Cauchy hypersurfaces and with Ricci tensor bounded from below on the set of timelike unit vectors, and prove that the results known for spacetimes satisfying the timelike convergence condition, namely, foliation by CMC hypersurfaces, are also valid in the present situation, if corresponding further assumptions are satisfied. In addition we show that the volume of any sequence of spacelike hypersurfaces, which run into the future singularity, decays to zero...

Source: http://arxiv.org/abs/math/0408197v3

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540

Jun 10, 2009
06/09

by
Paul Gerhardt

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Translated by John Kelly, 1867

Topics: German Hymnody, Hymns in translation

Manuale di ascoltazione e percussione : con speciale riguardo alla ispezione, palpazione e misurazione del torace e dell'addome per lo scopo diagnostico / del dott. G. Gerhardt ; prima traduzione italiana sulla 2. ed. tedesca ampliata e corretta pel dr. T. De Bonis Napoli : V. Pasquale, 1872 VIII, 279 p., [1] c. di tav. : ill. ; 22 cm.

Topic: Physical examination

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188

Sep 7, 2016
09/16

by
Gerhardt, Paul

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Topics: bub_upload, Geistliches Lied, Deutsch

Source: http://books.google.com/books?id=ymA7AAAAcAAJ&hl=&source=gbs_api

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225

Jan 17, 2015
01/15

by
Paul Gerhardt

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eye 225

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Topic: bub_upload

Source: http://books.google.com/books?id=ank6AAAAcAAJ&hl=&source=gbs_api

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7.0

Nov 9, 2019
11/19

by
J Gerhardt

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41

Sep 18, 2013
09/13

by
Claus Gerhardt

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We consider the problem $F=f(\nu)$ for strictly convex, closed hypersurfaces in $S^{n+1}$ and solve it for curvature functions $F$ the inverses of which are of class $(K)$.

Source: http://arxiv.org/abs/math/0509217v6

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45

Sep 18, 2013
09/13

by
Claus Gerhardt

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We prove that the limit hypersurfaces of converging curvature flows are stable, if the initial velocity has a weak sign, and give a survey of the existence and regularity results.

Source: http://arxiv.org/abs/0704.0236v4

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42

Sep 18, 2013
09/13

by
Claus Gerhardt

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We prove curvature estimates for general curvature functions. As an application we show the existence of closed, strictly convex hypersurfaces with prescribed curvature $F$, where the defining cone of $F$ is $\C_+$. $F$ is only assumed to be monotone, symmetric, homogeneous of degree 1, concave and of class $C^{m,\al}$, $m\ge4$.

Source: http://arxiv.org/abs/0704.1021v2

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36

Sep 22, 2013
09/13

by
Claus Gerhardt

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We prove that the leaves of an inverse mean curvature flow provide a foliation of a future end of a cosmological spacetime $N$ under the necessary and sufficent assumptions that $N$ satisfies a future mean curvature barrier condition and a strong volume decay condition. Moreover, the flow parameter $t$ can be used to define a new physically important time function.

Source: http://arxiv.org/abs/math/0403097v2

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Sep 22, 2013
09/13

by
Claus Gerhardt

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We consider branes $N$ in a Schwarzschild-$\text{AdS}_{(n+2)}$ bulk, where the stress energy tensor is dominated by the energy density of a scalar fields map $\f:N\ra \mc S$ with potential $V$, where $\mc S$ is a semi-Riemannian moduli space. By transforming the field equation appropriately, we get an equivalent field equation that is smooth across the singularity $r=0$, and which has smooth and uniquely determined solutions which exist across the singularity in an interval $(-\e,\e)$....

Source: http://arxiv.org/abs/hep-th/0409123v3

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8.0

Jun 8, 2020
06/20

by
J Gerhardt

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57

Sep 18, 2013
09/13

by
Claus Gerhardt

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We consider the Wheeler-DeWitt equation $H\psi=0$ in a suitable Hilbert space. It turns out that this equation has countably many solutions $\psi_i$ which can be considered as eigenfunctions of a Hamilton operator implicitly defined by $H$. We consider two models, a bounded one, $0

Source: http://arxiv.org/abs/0806.1769v7

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Sep 18, 2013
09/13

by
Claus Gerhardt

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We give an overview of the existence and regularity results for curvature flows and how these flows can be used to solve some problems in geometry and physics.

Source: http://arxiv.org/abs/0806.1968v1

Dahlien-Kranich: Dahlienknollen- und Jungpflanzen-Sonderliste 1958

Topics: Nursery stock Catalogs, Dahlias Catalogs

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2.0

Oct 10, 2019
10/19

by
Gerhardt, Pamela

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167 p. ; 23 cm

Topics: Gerhardt, Pamela -- Family, Adult children of aging parents -- Anecdotes, Fathers and daughters,...